Perforating-rule



H. S. MILLER. PERFORMING RULE. APPLICATION FILED IIIAII. 22. 1919.

11,;'351092a 'L I Patented Aug. 249 L92@ PATENT OFFICE.

HENRY S. MILLER, OF WASHINGTON', DISTRICT OF COLUMBIA.

PERFORATING-RULE.

Specification of Letters Patent.

Patented Ane. 24, 1920.

Application filed March 22, 1919. Serial No. 284,458.

T 0 all whom t may concern.'

Be it known that I, HENRY S. h/IILLER, a citizen of the United States, residing at lVashington, in the District of Columbia, have invented certain new and useful Improif'ements in Performing-Rules, of which the following' is a specification.

This invention relates to improvements in what are termed perforating` rules, particularly applicable for use in connection with the well-known printing plate-holders.

The invention has for its object, especially to provide for the effective and ready retention of the perforating` rule in the plateholder, as against the casual or inadvertent displacement of said perforating rule, also to provide for carrying` out that end in a simple and inexpensive manner and with facility.

Further objects of the invention will be apparent and appreciated as the nature, construction and operation thereof are disclosed from the following description or eX- planation taken in connection with the accompanying illustration.

The invention therefore consists of certain instrumentalities and features of construction substantially as hereinafter more fully set forth and pointed out in the appended claims.

In the accompanying' drawing is illustrated the preferred embodiment of my invention wherein it will be understood that various changes and modifications as relate to the detailed construction and arrangement of parts may be made without departing' from the spirit or scope of the claims, and in which drawing Figure l represents a side elevation of my improved perforating rule.

Fig. 2 is a plan view of a locking element or device particularly designed for the securing of the perforating rule in the base Fig. 3 is a longitudinal section of said locking' device taken on the line 3-3 of Fig'. 2.

Fig. 4 is a section of the same taken on the line 4-4 of Fig. 2.

Fig'. 5 is a fragmental plan. view showing' my invention in operative relation with the usual printing p] ate-holder.

In carrying` out myl invention I employ a perforating rule l, having the general toothed or ratchet formation la as shown, which is formed or made in one piece with its base 2, end-posts 3 and intermediate posts d, the posts, both end and intermediate, being formed with lateral studs These posts, which project or depend from the lower side of the base 2 of the rule l, are of suitable dimensions to accommodate the positioning of the within the slots in the printing plate-holder, for example, as shown, so as to allow the perforating` rule proper to rest upon the printing` plateholder and to be manipulated in suitably ruling` or perforating the paper to be operated upon. The end-posts, with their studs or projections, are relatively arranged with respect to the rule and its base to provide for said rule snugly overlapping` adjacently positioned printing plate holders. The studs 5 of the posts il are positioned thereon and adapted to project therefrom so as to enter the slots 4. of the plate-holder 4b and retain the rule effectively in position therein, a space between the base 2 of the rule and the studs 5 'of the end-posts being adapted to provide for automatic interengagement thereof for the securing of these parts fast together.

As disclosed by Figs. 2, 3 and 4L, means are shown for locking the device in the plate-holder, -when necessary, which includes principally a preferably T-shaped element 6 positioned in a slot of said plate-holder. A screw-threaded bore extends continuously through the stem of the T and the head thereof and within saidbore works a screw 7, which screw is adapted to be actuated by a. mill-edged nut 8 by suitably manipulating the latter. Provided at each end of the head or cross portion of the element G is a latch 9 adapted, by suitably actuating said latches, to cause them to extend beyond the top edges of said cross-head portion, sui'iicient space being provided for the reception of said `top-edge of the cross-head of the T member or element within the slot or groove of the plate-holder'. The screw 7 is provided with a head 7 havingV a socket l() for engagement therewith of a stud 5 of a post l of the rule-base 27 as disclosed ]')articularly by Fig'. 5, thus providing for the retention of the rule in effective position. As above indicated, is shown the usual printing base 4b which it is believed needs no elaboration herein.

Having` thus fully described my invention what I claim is- 1. A device of the type described including a perforating rule provided with depending posts havinglaterally extending studs, said posts and studs being,` adapted to engage a printing plate-holder base7 and slots therein, respectively. y

2. A device of the type described, including a performing rule provided With de pending posts having laterally projecting Studs adapted to engage a printing plateholder base, said posts being adapted to be received Within slots in said base, and a. locking device for said rule comprising a T- shaped element having :i screw-threaded member extending therethrough, and provided With latches Vin its cros'sheud portion, said screw-threaded member being provided With an apertured head adapted for engagement with said studs.

In testimony whereof I aix my signature.

HENRY s. MILLER. 

